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Consolidated Balance Sheets (Parenthetical) (USD $) | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Long-term investments and other assets, fair value | $ 2,970 | $ 2,826
Series B redeemable convertible preferred stock, par value |  | $ 0.01
Series B redeemable convertible preferred stock, shares authorized |  | 45,000
Series B redeemable convertible preferred stock, shares issued |  | 35,217
Series B redeemable convertible preferred stock, shares outstanding |  | 35,217
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 1,000,000,000 | 1,000,000,000
Common stock, shares issued | 8,071,674 | 6,343,295
Common stock, shares outstanding | 7,826,674 | 6,188,295
Treasury stock, shares | 245,000 | 155,000

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